A group of civic leaders are proposing a new initiative that would severely limit Airbnb's business in San Francisco.

The initiative, proposed by a group of housing activists and a former planning commissioner, calls to restrict people from renting their rooms through sites like Airbnb, VRBO, and other sites, The San Francisco Chronicle reports. If it goes through, the initiative would only allow temporary rentals in neighborhoods with commercial zoning.

The proposal would also financially reward people who sue Airbnb hosts whom are illegally renting out their homes or apartments. Those who report illegal home shares would receive up to 30% of the fine and back taxes. Though, that idea is reportedly still in flux.

The group is still seeking money and endorsements, and will need to gather 9,700 signatures by July 7 in order to place the initiative on the ballot.

This initiative is just the latest in the ongoing saga of Airbnb's legality in cities like San Francisco and New York.